• BS EN 306:1997

    Current The latest, up-to-date edition.

    Heat exchangers. Methods of measuring the parameters necessary for establishing the performance

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-10-1997

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Definitions
        3.1 Measurement of temperature
        3.2 Measurement of flow-rate
        3.3 Measurement of pressure
        3.4 Measurement of fluid quality
        3.5 General definitions
    4 Sampling
        4.1 Sampling frequency
        4.2 Measuring sampling period
        4.3 Simultaneous reading of measurement
        4.4 Mean value calculation
    5 Temperature measurement
        5.1 Purpose
        5.2 Equipment
              5.2.1 Expansion thermometers
              5.2.2 Resistance thermometers
              5.2.3 Thermocouples
        5.3 Preparations
              5.3.1 Installation
              5.3.2 Location
              5.3.3 Static measurement error
              5.3.4 Dynamic measurement error
              5.3.5 Other requirements for temperature
                      sensor installation
        5.4 Calibration
              5.4.1 Purpose
              5.4.2 Traceability
              5.4.3 Uncertainty of calibration
              5.4.4 Calibration interval
        5.5 Stability
        5.6 Presentation of temperature measurement
    6 Measurement of flow-rate
        6.1 Purpose
        6.2 Equipment
              6.2.1 Common measuring methods for liquids
                      and gas
              6.2.2 Measurement methods for liquid flow-rates
              6.2.3 Measurement of two-phase flow
        6.3 Preparations
              6.3.1 Installation
              6.3.2 Location
              6.3.3 Static measurement error
              6.3.4 Dynamic measurement error
              6.3.5 Other requirements for flow meter
                      installation
        6.4 Calibration
              6.4.1 Purpose
              6.4.2 Traceability
              6.4.3 Uncertainty of calibration
              6.4.4 Calibration interval
        6.5 Stability
        6.6 Presentation of mass flow measurement
    7 Measurement of pressure
        7.1 Purpose
        7.2 Measurement probes and pressure tappings
              7.2.1 Total pressure
              7.2.2 Static pressure
              7.2.3 Dynamic pressure
              7.2.4 Pressure drop
        7.3 Equipment
              7.3.1 U-tube manometer
              7.3.2 Pressure transducer
        7.4 Preparations
              7.4.1 Installation
              7.4.2 Location
              7.4.3 Static measuring error
              7.4.4 Dynamic measuring errors
              7.4.5 Other requirements for pressure tapping
                      installation
        7.5 Calibration
              7.5.1 Purpose
              7.5.2 Traceability
              7.5.3 Uncertainty of calibration
              7.5.4 Calibration interval
        7.6 Stability
        7.7 Presentation of pressure measurement
    8 Fluid quality
        8.1 Purpose
        8.2 Determination of density
        8.3 Determination of specific heat capacity/
              enthalpy
        8.4 Determination of vapour ratio, (x)
        8.5 Determination of phase state
        8.6 Determination of viscosity
        8.7 Determination of mass ratios
    9 Requirements for peripheral equipment and media
        9.1 Peripheral equipment
              9.1.1 Regulating system
              9.1.2 Heaters and coolers
              9.1.3 Flows
              9.1.4 Pressures
        9.2 Media
              9.2.1 Ageing
              9.2.2 Filtering
    10 Test record
        10.1 Laboratory test and acceptance test

    Abstract - (Show below) - (Hide below)

    Defines methods and accuracy of measurement for temperature, pressure, fluid quality and massflow of different fluids, together with a method of determination of the pressure drops across a heat exchanger.

    General Product Information - (Show below) - (Hide below)

    Committee RHE/30
    Document Type Standard
    Publisher British Standards Institution
    Status Current

    Standards Referencing This Book - (Show below) - (Hide below)

    BS EN ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full General principles and requirements
    ISO 5221:1984 Air distribution and air diffusion Rules to methods of measuring air flow rate in an air handling duct
    ISO 2186:2007 Fluid flow in closed conduits — Connections for pressure signal transmissions between primary and secondary elements
    BS EN ISO 9000:2015 Quality management systems. Fundamentals and vocabulary
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